Home / 1,276,572.66-1,915,440.30-477,916.44

Finding the Fourth Proportional to 1,276,572.66, 1,915,440.30 and 477,916.44

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Solution

The fourth proportional to 1,276,572.66, 1,915,440.30 and 477,916.44 is: 717,092.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,572.66 : 1,915,440.30 = 477,916.44 : x
  2. Step 2: Convert to fraction form
    1,276,572.66/1,915,440.30 = 477,916.44/x
  3. Step 3: Cross multiply
    1,276,572.66x = 1,915,440.30 × 477,916.44
  4. Step 4: Simplify right side
    1,276,572.66x = 915,420,409,208.53
  5. Step 5: Solve for x
    x = 915,420,409,208.53/1,276,572.66
  6. Step 6: Final answer
    x = 717,092.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.